Grohe Automatic 2000 34 357 Basic Manual Del Usuario página 6

I976930.book : I97693GB.FM Seite 3 Freitag, Dezember 10, 1999 2:03 PM
GB
Application
Thermostat mixers are designed for hot water supplies
from pressurized storage heaters and offer the highest
temperature accuray when used in this way. Given
sufficient output (min. 18 kW or 250 kcal per min), electric
or gas- fired instantaneous heaters are also suitable.
Thermostats cannot be used in conjunction with
unpressurized storage heaters (displacement water
heaters).
All thermostats mixers are adjusted at the factory with a
flow pressure of 3 bar on both sides.
If temperature deviations should occur on account of
special installation conditions, the thermostat should be
adjusted to local conditions (see Adjustment).
Technical data
Minimum flow pressure without
downstream resistances
Minimum flow pressure with
downstream resistances
Max. operating pressure
Recommended flow pressure
Test pressure
Flow rate at 3 bar flow pessure
34 357
34 650
Max. water temperature at hot water inlet
Recommended max. stored
temperature (energy saving)
Safety check
Hot water temperature at supply connection
2 °C higher than mixed water temperature
Hot water connection
Cold water connection
Minimum rate of flow
At flow pressures above 5 bar, we recommend installing a
pressure reducer in the supply pipe.
3
Installation
Flush pipe lines thoroughly
Install mixer securely, see fig. [1].
In this connection, refer to the dimensional drawings on
fold out page I. The hot water supply must be connected
on the left, the cold water supply on the right, as viewed
from the operating position.
The projection can be increased by 20mm with an
extension, see fold-out page I (ref. No. 07 130).
Check connections for leaks.
Adjustment
For temperature-adjustment, see figs. [2] and [3]
• Before the mixer is put into service if the mixed water
temperature measured at the point of discharge varies
from the specifiede temperature set on the thermostat.
0.5 bar
• After any maintenance operation on the thermoelement.
1 bar
10 bar
Open the shutt-off valve and check the temperature of the
1 - 5 bar
water with a thermometer, see fig. [2].
16 bar
With the safety stop depressed, turn thermostat knob (E)
approx. 20 l/min.
until the water temperature reaches 38 °C.
approx. 27 l/min.
80 °C
- Pull off or unscrew cover cap.
60 °C - Hold thermostat knob (E) in this position and unscrew
38 °C
and remove screw (G).
- Pull off thermostat knob (E) and reinstall in such a way
that the 38 °C mark on the knob coincides with the
mark (H) on the mixer body, see fig. [3].
left
right
- Hold thermostat knob (E) and reinstall screw (G),
= 5 l/min
see fig. [3].
- Fit or screw cover cap back on.
Reversed union (hot on right - cold on left).
Replace thermoelement (W), see replacement parts
fold-out page I, ref. No.: 47 282 (1/2").